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Sci-Supply qualitative grade filter paper is perfect for all of your laboratory needs. It comes in a variety of sizes and speeds to suit multiple applications. Select size and speed from the menu above prior to checkout. All orders ship fast from our Fairfield, Ohio warehouse. We are a small American business! Quantity: Box of 100 Circles Select Size: 9cm, 11cm, 12.5cm, 15cm or 24cmSelect Speed: Slow, Medium or Fast Particle Retention (Slow): @5µm (micron)Particle Retention (Medium): @10µm (micron)Particle Retention (Fast): @20µm (micron) Ash Content: 0.15%

Each unit is factory sealed in the manufacturer's box. The pictures are of the same model - just one I have without a box. Hence, should you spy any scuffs or flaws, it’s only because the photo model has traveled unprotected without a box. Yours is in the box... Physics Blower for Air Track, Quiet Air Supply Low Noise Air Pump Type: DC-3A Noise 250W. Pressure > 6kpa. Flow> 35m3/h Input: 110V. Weight: 6kg. Dimensions: 210 x 370 Discounts for multiple quantity purchases with $5 standard shipping on the first unit and free shipping on all additional units! 30 day no-risk guarantee - if you are unhappy with your purchase, please let me know within thirty days of receipt and I will pay return shipping in addition to issuing a full 100% refund upon return. I appreciate every order and want you to be happy with your stuff. The item in the pictures is the item that you will receive. If you have any questions, please let me know. Thanks! Loc: MS2BR

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